The following accession numbers are recognized in iHOP

These DB-IDs can be used in your query urls: e.g. NCBI_GENE__ID
DB-IDDescription
ACEDB__IDAceDB, genome database (ID)
ACEVIEW_WORMGENE__SYMAceView/Wormgenes
ECOLI_GENOME_PROJECT__IDE.coli Genome Project (ID)
ENZYME_COMMISSION__ECEnzyme Commission number (EC number)
EUGENES__GN_IDeuGenes (GN ID)
FLYBASE__FBANFlyBase (FBAN ID)
FLYBASE__FBGNFlyBase (FBGN ID)
GDB__IDGenome Database (GDB ID)
GENE_ONTOLOGY__IDGene Ontology
HGNC__IDHUGO Gene Nomenclature Comittee
INTACT__IDIntAct (ID)
INTERPRO__IDInterPro (ID)
MGI__IDMouse Genome Informatics
NCBI_DBSNP__IDNCBI dbSNP
NCBI_GENBANKNCBI, GenBank
NCBI_GENBANK__ACNCBI, GenBank (Accession number)
NCBI_GENBANK__GINCBI, GenBank (Gene Identifier)
NCBI_GENE__IDNCBI, Gene ID
NCBI_OMIM__MIMOnline Mendelian Inheritance in Man (MIM)
NCBI_PUBMED__PMIDNCBI, PubMed (PMID)
NCBI_PUBMED__UINCBI, PubMed (UI)
NCBI_REFSEQ__NMNCBI, RefSeq NM (Mature mRNA)
NCBI_REFSEQ__NPNCBI, RefSeq NP (Protein Product)
NCBI_UNIGENE__IDNCBI, UniGene (ID)
PFAM__IDPfam, database of protein domains (ID)
PIR__IDProtein Information Resource (ID)
PRODOM__IDPRODOM (ID)
PROSITE__IDPROSITE, Database of protein families and domains (ID)
PROTEIN_DATABANK__PDB_IDProtein Data Bank (PDB)
RAT_GENOME_DATABASE__IDRat genome database (Object ID)
SC_SYSTEMATIC_NAMESaccharomyces Systematic Gene Name
SCOP__IDStructural Classification of Proteins (ID)
SGD__SGDIDSaccharomyces Genome Database (SGD ID)
TAIR__GENE_IDThe Arabidopsis Information Resource (GENE_ID)
TREMBL__ACTrEMBL (AC)
UNIPROT__ACUniProt (AC)
UNIPUB_IDUniPub (Document Id)
WORMBASE__GENE_IDWormBase (GENE_ID)
WORMBASE__PROTEIN_IDWormBase (PROTEIN_ID)
ZDB__GENE_IDZebrafish Database (GENE_ID)